lkml.org 
[lkml]   [2019]   [Aug]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] net: sched: sch_taprio: fix memleak in error path for sched list parse
Date
In case off error, all entries should be freed from the sched list
before deleting it. For simplicity use rcu way.

Fixes: 5a781ccbd19e46 ("tc: Add support for configuring the taprio scheduler")
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
---

Based on net/master

net/sched/sch_taprio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index b55a82c1e1bc..4f6333035841 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -1451,7 +1451,8 @@ static int taprio_change(struct Qdisc *sch, struct nlattr *opt,
spin_unlock_bh(qdisc_lock(sch));

free_sched:
- kfree(new_admin);
+ if (new_admin)
+ call_rcu(&new_admin->rcu, taprio_free_sched_cb);

return err;
}
--
2.17.1
\
 
 \ /
  Last update: 2019-08-06 12:05    [W:0.122 / U:0.720 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site